Tuberculosis in Kindergarten and Primary School, Italy, 2008–2009
2011

Tuberculosis Outbreak in Italian Schools

Sample size: 851 publication Evidence: moderate

Author Information

Author(s): Filia Antonietta, Ciarrocchi Giuseppe, Belfiglio Rossana, Caferri Monaldo, Bella Antonino, Piersimoni Claudio, Cirillo Daniela, Grilli Gualtiero, Mancini Cristina, Greco Donato

Primary Institution: National Health Institute, Rome, Italy

Hypothesis

What factors contributed to the tuberculosis outbreak in a kindergarten and primary school in Italy?

Conclusion

The outbreak indicates ongoing TB transmission in a low-incidence country, linked to a school assistant who was the source of infection.

Supporting Evidence

  • 19 children had active TB and 43 had latent TB infection.
  • Initial testing showed 13.8% of children had positive TST results.
  • The outbreak was linked to a school assistant with a family history of TB.

Takeaway

A lot of kids in a school in Italy got sick with tuberculosis because a teacher had it and didn't get treated in time.

Methodology

A contact investigation was performed, screening children and staff for TB using TST and chest radiography.

Potential Biases

Potential bias due to pressure from parents and media coverage affecting the investigation's thoroughness.

Limitations

The urgency of the investigation may have led to excessive screening of low-risk persons and inconsistent recording of risk factors.

Participant Demographics

The majority of participants (96%) were born in Italy, with a median age of 6 years for children.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.3201/eid1703.101440

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